| snowdog said: ... It's also a current-gen gyroscope (using MEMS technology) unlike the gyroscope in the Move controller which is a last-gen gyroscope (using IC technology). The weird thing is that the Magnetometer in the Move controller uses MEMS technology, but as far as I understand it they wouldn't need to use a Magnetometer if they used a MEMS gyroscope in the first place. Maybe it was cheaper to do things that way..? Only reason I can think of. ... |
Uhm, can you explain this or provide links? As far as I understand MEMS is simply a set of techs to create very small mechanical devices, but the end product is of course interfaced to as an integrated circuit (IC), so I can't see why you're posing them as competing techs.
Thus I'd say that while it's known how WiiMP' chips are MEMS-based IC provided by InvenSense, the teardown of the PS Move by ifixit tentatively pointed to a chip as the gyro, but no further details are known. Thus why should not it be MEMS based as well, since it's a common and inexpensive tech at tis point?
Finally, a gyro chip being MEMS-based has nothing to do with the advantages of also having a MEMS magnetic compass chip. The compass provides an absolute orientation reading relative to the earth magnetic field, thus it can help in automatically recalibrating the rotations, as gyros only measure angular variations with a given resolution and are thus subject to the well known drifting.
